Convert AudioBufferSource tests using Audit to testharness

third_party/WebKit/LayoutTests/webaudio/resources/audiobuffersource-testing.js

 function createTestBuffer(context, sampleFrameLength) {
     var audioBuffer = context.createBuffer(1, sampleFrameLength, context.sampleRate);
     var channelData = audioBuffer.getChannelData(0);
 
     // Create a simple linear ramp starting at zero, with each value in the buffer equal to its index position.
     for (var i = 0; i < sampleFrameLength; ++i)
         channelData[i] = i;
 
     return audioBuffer;
 }
@@ skipping 48 matching lines @@
             for (var j = framesToTest; j < testSpacingFrames; ++j)
                 renderedArray[j - framesToTest] = renderedData[offsetFrame + j];
 
             var s = description + ": expected: all zeroes actual: " + renderedArray;
             testFailed(s);
             success = false;
             break;
         }
     }
 
-    if (success)
-        testPassed(description);
+    Should(description, success)
+        .summarize("", "");
 
     return success;
 }
 
 function checkAllTests(event) {
     var renderedBuffer = event.renderedBuffer;
     for (var i = 0; i < tests.length; ++i)
         checkSingleTest(renderedBuffer, i);
 
     finishJSTest();
@@ skipping 32 matching lines @@
 
   // The oscillator output should be amplified accordingly to drive the
   // modulation within the desired range.
   lfo.connect(amp);
   amp.connect(phasor[modTarget]);
 
   phasor.connect(context.destination);
 
   lfo.start();
   phasor.start();
-}
+}